/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.geode.security.templates;

import java.security.Principal;
import java.util.Properties;

import org.apache.geode.security.PostProcessor;

/**
 * This is example that implements PostProcessor
 */
public class SamplePostProcessor implements PostProcessor{

  @Override
  public void init(final Properties securityProps) {
  }

  /**
   * This simply modifies the value with all the parameter values
   *
   * @param principal
   *        The principal that's accessing the value
   * @param regionName
   *        The region that's been accessed. This could be null.
   * @param key
   *        the key of the value that's been accessed. This could be null.
   * @param value
   *        the value, this could be null.
   * @return the processed value
   */
  @Override
  public Object processRegionValue(Object principal,
                                   String regionName,
                                   Object key,
                                   Object value) {
    String name = null;
    if(principal instanceof Principal){
      name = ((Principal) principal).getName();
    }
    else{
      name = principal.toString();
    }
    return name+"/"+regionName+"/"+key+"/"+value;
  }
}
